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Finding the Fourth Proportional to 535,874.40, 803,422.80 and 220,168.80

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Solution

The fourth proportional to 535,874.40, 803,422.80 and 220,168.80 is: 330,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,874.40 : 803,422.80 = 220,168.80 : x
  2. Step 2: Convert to fraction form
    535,874.40/803,422.80 = 220,168.80/x
  3. Step 3: Cross multiply
    535,874.40x = 803,422.80 × 220,168.80
  4. Step 4: Simplify right side
    535,874.40x = 176,888,633,768.64
  5. Step 5: Solve for x
    x = 176,888,633,768.64/535,874.40
  6. Step 6: Final answer
    x = 330,093.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.